Adhesive thread and fabric



De. 13, 1949 M. sEcKEl.`

ADHESIVE THREAD AND FABRIC Filed Aug. 4, 1947 remise D. is, 194eADHESIVE Irlands. l!! Ndlillllllll amusant ori-'ica executor Elilellee.

Application aum A4, im, serai No. 165,889 In the Netherlands August11,1'939 section i, renners' no. 'aum s, 194s Panni man ii, i959 l it'is known that a fabric may be imii'enefi'inrv sismica m shrinkingincorporating threads made of acetate silk, in-

troducing the said fabric into a medium by' whichthe acetate silk isdissolved and subse-l c uently stiffening the fabric by heating thesame. This idea is realized in various ways and for all kinds ofpurposes and, besides acetate silk, other.`

cellulose derivatives or other suitable materials may be used in theprocess, such as vinyland similar synthetic resins, resoles of phenoliccondensation products. As a solvent one may use liquid acetone oracetone ,vapour or` methyl alcohol or other substances having theproperty of rendering threads temporarily adhesive. lfor the sake ofbrevity only those threads which after weaving may be temporarilyrendered adhesive will be'denoted as threads having latentadhesiveproperties.

When sticking a .fabric contaimng threads with latent adhesiveproperties on to some other textile fabric, one will experiencediiliculties caused by the difference in the shrinking propertiesof thesaid fabrics. Especially fabrics originating from diierent factoriesgenerally show a different resistance to shrinking, so that it takes agreat deal of work and care to obtain a product` that will be smooth andwill remain Aso after having been applied to another fabric, and willstill look well after -having been repeatedly washed or washed andironed. Up to the present it has not been possible to use sanforized andnon-sanforized fabrics with one and the 2 V and those related to theweaving of the product.

According to the invention there is provided a connecting fabriccharacterized in that either theweftor the warp or both the weft and thewarp entirely consist of twoy or more threads combined' to form a threadhaving'latent adhesive properties, oi/which threads one at leastconsists of or contains a cellulose derivative or 1Q some other materialhaving latent adhesive properties, whilev the other thread(s) is (are)of a greater length than the threadrst mentioned. According to a simpleembodiment of theinvention the said other threadfs) is (are) wound round-the thread that is to be given latent adhesive properties.

It has been found effective to manufacture the said combination threadsby winding a spun thread made of cotton or. some other material that isinsoluble in the solvent for the adhesive,

- round one vor more untwisted continuous yarns having latent adhesiveproperties. l

The invention also relates toa process of manufacturing a thread havinglatent adhesive prop- 25. erties for a fabric according to theinvention,

same connecting fabric. In British Patent specication No. 502,701 it isstated that if .sanforized outer fabrics are used, the connecting fabiicshould also be sanforized sani'orized refers to the treatment forrendering fabrics shrink-resistant, particularly those which arecommonly laundered. This process is covered by the patent of SanfordCluett No. 1,861,422, and others relating to the same sub- Theexpression characterized in that one or more threads of a predeterminedlength and`made of a cellulose derivative or of some other materialhaving la,-

tent Aadhesive properties is combined with one V or more threads that is(are) made of cotton or of A.some other material without latent adhesivepropertiesv and that is (are) of a greater length, in order toform athread having latent adhesive properties, in such a way that the thread35 without latent adhesive properties is disposed Vwith spaced coilsround the thread having la-l tent adhesiveproperties, and the inventionalso relates yto the threads having latent adhesive properties whichhave been produced by means 40 of the present process.

ject matter, In that case the choice of the ma terials is very limited.The weaving of fabrics the weft threads of which partially consist ofthreads having latent adhesive properties also will give rise-todifficulties on account of the differences '-in the manner ofinterlacixigwhich are needed forfthe various kinds of threads. kBecauseof this, adhesive fabrics of this kind as well as the finished productin which they have been used, will vbe comparatively expensive.

The present invention has for its purpose to reduce or even to obviatecompletely both'the drawbacks connected with the differencein re- Theinvention may also be applied to fabrics consisting of two or moreinterwoven layers and is characterized in thatcase by the fact that oneof the connecting layers of thread in the '45 direction of the weftor/and in the direction of to the fact that a plain fabric thread ofgrealiell" the warp, consists of threads having latent adhesiveproperties according to the invention.

By carrying into practice the idea according to the present invention,one will obtain in the lib-fabric a certain amount of latent space thatwill allow of all kinds of combinations without the necessity of payingattention to any possible differences in'fthe'shrinking properties ofthe combination thread and the other threads. Owing 3 length is combinedwith the thread having latent adhesive properties, the latter aftersticking and stiifening will be present in the fabric in a greaterlength and consequently will not produce any shrinkage of the connectinglayer and irregularities in the surface of the interconnected layer(s)of fabric.

The invention will be explained with the aid of the drawing in whichFig. 1 is a diagram of a fabric manufactured in the ordinary manner,

Fig. 2 represents a combination thread for a fabric according to theinvention on an enlarged scale.

Fig. 3 is a diagram of a fabric containing adhesive threads according tothe invention.

In Fig. 1 the reference numeral I represents the warp threads, while 2represents the weft threads, both threads being made of cotton,

whereas 3 represents the acetate silk threads.

The weaving of such a fabric is very diilicult on account of thenecessary difference in the interlacing of the cotton warp threads I andthe acetate threads 3. If such a fabric is combined with one or morelayers of some other ordinary textile fabric, this will causedifficulties, if the resistance to shrinkage is not the same in bothfabrics, so that e. g. the combination of a sanforized fabric with anon-Sanforized adhesive fabric will be Very difiicult. Moreover` theproduct will be rather expensive.

The said difculties are obviated by the present invention. The threadaccording to Fig. 2 consists of a core 4 of two or more threads ofuntwisted acetate silk and of a cotton thread 5 wound round the same,which cotton thread 5 has been obtained by joining or twisting togetherthe said two kinds of thread, the cotton thread being supplied at ahigher rate.

When using such threads in fabrics for the weft and/or for the warp,there is no need of paying any attention to the difference in theinterlacing of the same and after the activation and the setting ofthose threads, in the combination threads which have latent adhesiveproperties, the threads 5 will have an undulated form and consequentlywill be able to adapt themselves to the stretching and the shrinkage ofthe fabric connected with the `same while retaining their excellentconnecting properties.

Fig. 3 represents a fabric accordingto the invention prior to dissolvingand subsequent s'etting of the threads 4. The warp threads are denotedby 6.

It is not imperative to connect the threads li,

5 in the manner indicated in Fig. 3; any other suitable binding may beused and the thread may be woven into two layer or multiple layerfabrics, so that there will be no need of a separate adhesive fabric.The adhesive fabric according to the invention may be used forinterconnecting all kinds of fabrics and one may of course choose thematerial, the number, the thickness, the distance and the nature of thedifferent threads, as well as the ratio between the lengths of thethreads 4 and 5, so as to be suitable for the purpose for which thefinished product is intended. As examples may be mentioned: removableinner shoesoles, parts or accessories of jackets, coats, shirts, andshirts with starched fronts, and also multiple layer linings for shoesand bags etc.

What is claimed ist l. A woven fabric adapted for use in the unitingtogether of two other layers of fabric, in which each of the threadswoven in at least one of the two directions has potential adhesiveproperties, characterized in that said threads are composed of at leastone thread of a potentially adhesive material and at least one thread ofgreater length than the rst mentioned thread, the latter mentionedthread being disposed in spaced windings around the first menticnedthread.

2. A composite potentially adhesive thread for use in a woven fabriccomposed of at least one thread of a potentially adhesive material andat least one thread of a material which isrlot potentially adhesivedisposedA in spaced windings around the thread of potentially adhesive-material.

3. A composite potentially adhesive thread for use in a woven fabriccomposed of at least one thread of a cellulose derivative and atleast'one thread of cotton disposed in spaced windings around the threadof cellulose derivative.

4. A multilayer woven fabric, produced by uniting at least two layerswith the interposition of at least one intermediate layer of the kind asclaimed in claim 1, characterized in that after the activation andstiffening of the composite potentially adhesive threads, the remainingthreads of the said composite threads are disposed in a non-stretchedcondition between the two layers to be united.

-E. J. SECKEL,

Eecutor vof the Estate. of Marinus Seccel, De-

ceased. Y

REFERENCES CITEI The following references lare of record in the le ofthis patent;

UNITED STATES PATENTS

